Las Posadas is a re-enactment of Mary and Joseph's search for lodging in the time just before the birth of Jesus. "Posada" is a Spanish word that can be translated as "inn" or "guest house."

Participants in Las Posadas walk in a group from house to house, singing to those inside until Mary and Joseph are recognized and invited inside.

Participants may carry candles or flowers and may gather around nativity scenes inside the houses they visit.

Participants in Las Posadas in Stockton will gather at 5 p.m. at St. Mary's Catholic Church, 203 E. Washington St. The procession will begin at 5:30 p.m. It will make its first stop at Maria's Restaurant on Market Street and a second stop at Xochimilco Restaurant on San Joaquin Street.

The procession will conclude at the Mexican Heritage Center, 111 Sutter St. The program will finish with singing and refreshments of pan dulce (sweet bread) and atole (a Mexican form of hot chocolate). Tamale dinners also will be on sale for $10 a plate.

On display at the Mexican Heritage Center will be nacimientos - Spanish for nativity scenes - created by individuals and groups from parishes. The nacimientos will be on display until Jan. 6.